my plan is a SBC Build in the 6000RPM to 6500RPM Range, parts consist of a 350 roller block, Hyper pistons, GM Reconditioned I Beam Rods & GM Hot roller cam, Vortec Heads. 10.1 CR. the Dyno shows this setup (with 5.7 Rods) to yield a Hot Little pump gas friendly 350. this is a street thumper that will see a couple sundays a month during the race season on the 1/4 mi drag strip.

so far I've been conservative on what I spent on parts, my 062 vortec heads are salvage yard specials that were off a low mi engine that were maged for cracks. the heads & block have to visit a machine shop yet, I figured I was pushing the stock rods but, thought I was safe with arp fasteners and a reconditioned rod. I keep thinking GM did it on the vette and a couple other SBCs. but I know this 350 is no good if it comes apart. so what rod would you recommend ?

this is going in a 74 Camaro with a 4 speed and 373s posi in a 10bolt that has aftermarket axles and a auburn limited slip with a bearing support cover and the axle tubes are welded. this rear might be a weak link also, I'm guessing the weak links are gona show up though.

so theres no advantages to 6" rods in a 350 ? if theres no advantages the 5.7 is prob a good choice. KB had a piston in the 10.1 CR Range for 5.7 rod & a 6" rod with a 348 stroke for about the same price.

We build a lot of engines and when ever we have the choice of going witha 6 inch rod over a 5.7 rod we choose the 6 inch every time, less cylinder wall friction more dwell time at TDC, lighter pistons and better results on the dyno.

This looks like a really good street motor. I strongly suggest you contact Demon to see what carb THEY recommend. My motor is much like yours and in talking to the BG tech here on Hotrodders, I got the distinct impression I was probably a little overcarbed. And my motor is a 383. If mine really was overcarbed, with my AFR heads and larger displacement, you will be for sure. The carb looks great on a Computer Dyno (DD or EA3) but all that's needed for carb tuning doesn't show up there. Barry Grant has the experts, their advice is free. I'd check it out.

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.

User Name:

Password

Please enter a password for your user account. Note that passwords are case-sensitive.

Password:

Confirm Password:

Email Address

Please enter a valid email address for yourself.

Email Address:

Insurance

Please select your insurance company (Optional)

Log-in

User Name

Remember Me?

Password

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.